MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 01/01/99 through 01/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 128 8,844
2-4 a.m. 45 2,372
4-6 a.m. 18 433
6-8 a.m. 61 915
8-10 a.m. 304 8,189
10-12 a.m. 627 21,211
12-2 p.m. 828 15,479
2-4 p.m. 871 21,443
4-6 p.m. 703 18,787
6-8 p.m. 368 12,665
8-10 p.m. 313 9,498
10-12 p.m. 292 7,954
__________ _____________ _________________
Total: 4,558 127,790
1.1 SEARCH commands
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Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 3
Davis 10
Irvine 3
Los Angeles 26
Riverside 0
San Diego 496
San Francisco 12
Santa Barbara 4
Santa Cruz 6
Lawrence Berkeley 13
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,626
Other - UC 326
Other-Network UC 33
_____
4,558
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 74
Davis 110
Irvine 1
Los Angeles 38
Riverside 0
San Diego 4
San Francisco 14
Santa Barbara 21
Santa Cruz 6
Lawrence Berkeley 22
Lawrence Livermore 0
Los Alamos 0
MELWEB 110,245
Other - UC 17,169
Other-Network UC 86
_____
127,790
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.9
Standard deviation in seconds 3.1
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.7
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 20:44
Average session length (minutes:seconds) 17:57
Longest session recorded (minutes:seconds) 299:08
Average number of searches completed per session 0.0
Retrievals per search - median 3.0
Retrievals per search - average 2432.0
Retrievals per search - standard deviation 25810
Percent of searches completed with 0 results 39.2%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 4,558 15.0%
PRESENT 24,097 79.4%
INIT or CLOSE 1,656 5.5%
OTHER 19 0.1%
SEARCHes completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By index:
PERSONAL AUTHOR 440 7.4% 331 75.2% 4 61.7 185.4
TITLE WORD 614 10.4% 317 51.6% 15 932.2 4216.5
EXACT TITLE 69 1.2% 61 88.4% 11 72.9 106.3
JOURNAL TITLE 219 3.7% 139 63.5% 88 5289.0 18575.7
EXACT JOURNAL 126 2.1% 38 30.2% 3,135 14500.0 20837.4
SUBJECT WORD 523 8.8% 299 57.2% 29 1011.0 3147.2
EXACT SUBJECT 226 3.8% 68 30.1% 32 1042.3 3540.2
KEYWORD 2,740 46.3% 777 28.4% 52 4443.8 38631.2
DATE 145 2.4% 66 45.5% 26 328.1 958.0
ADDED SINCE 42 0.7% 25 59.5% 22 61.1 84.0
PUB TYPE 56 0.9% 35 62.5% 20 193.1 625.4
SUBFILE 19 0.3% 11 57.9% 467 1791.4 3641.8
ID 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 1 0.0% 1 100% 0 0.0 0.0
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 93 1.6% 37 39.8% 90 2789.0 12180.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 604 10.2% 200 33.1% 77 3879.3 16323.9
Other indexes 4 0.1% 4 100% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By number of indexes:
Multiple 1,118 24.5% 469 41.9% 30 2720.6 13463.3
Single 3,440 75.5% 1,319 38.3% 55 4393.9 36982.0
PRESENT commands, by type:
MARC 38.5%
OPAC 30.2%